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dc.contributor.CRUESPUNIVERSIDADE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authorunicampPodadera, Diego Sotto-
dc.typeArtigopt_BR
dc.titleEmbolism resistance in stems of herbaceous Brassicaceae and Asteraceae is linked to differences in woodiness and precipitationpt_BR
dc.contributor.authorDoria, Larissa Chacon-
dc.contributor.authorMeijs, Cynthia-
dc.contributor.authorPodadera, Diego Sotto-
dc.contributor.authordel Arco, Marcelino-
dc.contributor.authorSmets, Erik-
dc.contributor.authorDelzon, Sylvain-
dc.contributor.authorLens, Frederic-
dc.subjectXilemapt_BR
dc.subject.otherlanguageXylempt_BR
dc.description.abstractPlant survival under extreme drought events has been associated with xylem vulnerability to embolism (the disruption of water transport due to air bubbles in conduits). Despite the ecological and economic importance of herbaceous species, studies focusing on hydraulic failure in herbs remain scarce. Here, we assess the vulnerability to embolism and anatomical adaptations in stems of seven herbaceous Brassicaceae species occurring in different vegetation zones of the island of Tenerife, Canary Islands, and merged them with a similar hydraulic-anatomical data set for herbaceous Asteraceae from Tenerife. Methods Measurements of vulnerability to xylem embolism using the in situ flow centrifuge technique along with light and transmission electron microscope observations were performed in stems of the herbaceous species. We also assessed the link between embolism resistance vs. mean annual precipitation and anatomical stem characters. Key Results The herbaceous species show a 2-fold variation in stem P-50 from -2.1 MPa to -4.9 MPa. Within Hirschfeldia incana and Sisymbrium orientale, there is also a significant stem P-50 difference between populations growing in contrasting environments. Variation in stem P-50 is mainly explained by mean annual precipitation as well as by the variation in the degree of woodiness (calculated as the proportion of lignified area per total stem area) and to a lesser extent by the thickness of intervessel pit membranes. Moreover, mean annual precipitation explains the total variance in embolism resistance and stem anatomical traits. Conclusions The degree of woodiness and thickness of intervessel pit membranes are good predictors of embolism resistance in the herbaceous Brassicaceae and Asteraceae species studied. Differences in mean annual precipitation across the sampling sites affect embolism resistance and stem anatomical characters, both being important characters determining survival and distribution of the herbaceous eudicotspt_BR
dc.relation.ispartofAnnals of botanypt_BR
dc.relation.ispartofabbreviationAnn. bot.pt_BR
dc.publisher.cityOxfordpt_BR
dc.publisher.countryReino Unidopt_BR
dc.publisherOxford University Presspt_BR
dc.date.issued2019-
dc.language.isoengpt_BR
dc.description.volume124pt_BR
dc.description.issuenumber1pt_BR
dc.description.firstpage1pt_BR
dc.description.lastpage13pt_BR
dc.rightsFechadopt_BR
dc.sourceWOSpt_BR
dc.identifier.issn0305-7364pt_BR
dc.identifier.eissn1095-8290pt_BR
dc.identifier.doi10.1093/aob/mcy233pt_BR
dc.identifier.urlhttps://academic.oup.com/aob/article/124/1/1/5259326pt_BR
dc.description.sponsorshipCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQpt_BR
dc.description.sponsordocumentnumber206433/2014-0pt_BR
dc.date.available2020-05-08T10:22:26Z-
dc.date.accessioned2020-05-08T10:22:26Z-
dc.description.provenanceSubmitted by Sanches Olivia (olivias@unicamp.br) on 2020-05-08T10:22:26Z No. of bitstreams: 0. Added 1 bitstream(s) on 2020-08-27T19:17:17Z : No. of bitstreams: 1 000493044300003.pdf: 3468931 bytes, checksum: cba568df56fab446d1900092ef457336 (MD5)en
dc.description.provenanceMade available in DSpace on 2020-05-08T10:22:26Z (GMT). No. of bitstreams: 0 Previous issue date: 2019en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/340399-
dc.contributor.departmentsem informaçãopt_BR
dc.contributor.unidadeInstituto de Biologiapt_BR
dc.subject.keywordCanary Islandspt_BR
dc.subject.keywordDroughtpt_BR
dc.subject.keywordEmbolism resistancept_BR
dc.subject.keywordHerbaceous speciespt_BR
dc.subject.keywordStem anatomypt_BR
dc.subject.keywordThickness of intervessel pit membranespt_BR
dc.subject.keywordWoodinesspt_BR
dc.identifier.source000493044300003pt_BR
dc.creator.orcid0000-0002-1381-6645pt_BR
dc.type.formArtigopt_BR
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